Year National Currency 2005-01-01 16784135500 2006-01-01 18725038100 2007-01-01 23354128700 2008-01-01 27081949100 2009-01-01 29801519500 2010-01-01 30196179300 2011-01-01 32227155700 2012-01-01 22703434600 2013-01-01 26566149700 2014-01-01 27460095200 2015-01-01 28225000000 2016-01-01 28785331900 2017-01-01 29685290200